I'm not going to read the whole thread, I don't need to, but I'll share this:

Each spring break I take my sons on tours all I can (so they learn themselves.) We did the local water plant 2 years ago & there are two things to take away.

1. They have to manually test & report fluoride results to the EPA every 4 HOURS (24/7)!

2. The controller for mixing this into the system is remote controlled from the EPA, they can increase and decrease as they see fit.

Yes, they agreed it does jack for your teeth, and wouldn't comment anymore.

I'm not going to come back and argue this, but it is what it is.